The modern pentathlon is an Olympic sport consisting of fencing (one-touch épée), freestyle swimming, equestrian show jumping, pistol shooting, and cross country running. The event is inspired by the traditional pentathlon held during the ancient Olympics. The modern pentathlon was first held in 1912, and its rules have changed several times over the years. The latest structure, as of the 2020 Olympics, consists of three separate events for fencing, swimming, and equestrian, which determine each athlete's starting time in the final event. The last event, called the laser-run, alternates four legs of laser pistol shooting followed by an 800 m run (for 3200 m in total). (Source: Wikipedia.org, CC BY-SA)